So imagine you have a bookshelf that opens to reveal a secret room/staircase. This would open by pulling a specific book forward.
What book would you select as the one to open it?
What book would you select as the one to open it?
Nope. If I saw that on the shelf, I'd have to try and re-arrange them so they were in chronological order.I'm thinking it would have to be three books, one for the actual mechanism and two for the casing used to obscure the mechanism lest a book outside of it reveals the mechanism. With that:
Protector left: Canadian Income Tax Act, 1952
Mechanism: Canadian Income Tax Act, 1963
Protector right: Canadian Income Tax Act, 1959